Shield.  Azure, between two caltrops and beneath a barrulet enhanced at center point with the shank of an anchor all Argent (Silver Gray), an inversed mullet of the second bearing a torteau surmounted by the United States Marine Corps Eagle, Globe, and Anchor emblem of the third, a chief Celeste bearing a semé of thirteen mullets Argent, all within a narrow border of the last.

Crest.  From a wreath of the colors Argent and Azure, between two bears combatant Brün armed Sable, two lightning bolts pilewise Or beneath a full harvest moon Proper. 

Supporters. Two cannons in saltire, muzzles up, Gris.

Motto.  A scroll Argent (Marine Corps White), edged Gules, and inscribed “EN AGITE” Azure.

Shield. The anchor shank above an inversed star represents the Medal of Honor, our nation’s highest award for military valor, awarded to 1st Lieutenant Harvey C. Barnum, Jr. for his actions on 18 December 1965 during OPERATION HARVEST MOON in the Que Son Valley, South Vietnam.  The Medal of Honor ribbon is represented on the chief of the shield, signifying Barnum’s conspicuous gallantry when he assumed command of a rifle company after they had been separated from the remainder of the battalion and the company commander had been mortally wounded.  The shape of the shield is taken from the Navy Corpsman’s insignia, paying homage to those lost in battle and those that still serve alongside Marines today.  Barnum has great respect for the courage and tenacity of Navy Corpsmen who assisted him in the treatment and evacuation of Marines wounded or killed in action.  The white border of the shield alludes to the defensive perimeter that 1st Lieutenant Barnum painstakingly created by moving into the midst of heavy fire to reorganize and stabilize the badly decimated units.  Two caltrops denote Barnum’s two tours in Vietnam with the 3d Marine Division, first as a 1st lieutenant with Company H, 2nd Battalion, 9th Marines, and second as a captain and Commanding Officer of Battery E, 2nd Battalion, 12th Marines.  He safely returned home and continued to serve, ultimately being promoted to colonel with 27 years of commissioned service.  His illustrious career as a Marine officer is symbolized by a red disc bearing the Marine Corps eagle, globe, and anchor emblem.

Crest.  The wreath adopts the first-named metal and color from the shield and blazon.  Colonel Barnum is quoted as saying, “If you are going to be a bear, be a GRIZZLY!”  The lightning bolts between two bears embodies Harvey C. Barnum Jr.’s intrepidity at the risk of his life above and beyond the call of duty as he stood exposed repeatedly to identify enemy targets to armed helicopters and to direct the landing of transport helicopters for the evacuation injured Marines.  The moon pays homage to 2nd Battalion, 9th Marines combat participation during OPERATION HARVEST MOON.

Supporters. The two crossed cannons represent Colonel Harvey C. Barnum Jr.’s role as an artillery officer and his command of Battery E, 2nd Battalion, 12th Marines upon his second deployment to Vietnam.  The cannons also represent the armament of the USS HARVEY C. BARNUM JR. (DDG 124).    

Motto.  The ship’s motto, “EN AGITE,” translates to “CHARGE ON!,” the personal rally cry of Colonel Barnum, and will forever encourage and inspire the crew of the USS HARVEY C BARNUM JR. (DDG 124).

Seal.  The coat of arms as blazoned in full color on a white oval within a red designation band, edged with a gold roped border and bearing the name “USS HARVEY C. BARNUM JR.” at the top and “DDG 124” at the base.